X509ExtendedKeyManager ekm = (X509ExtendedKeyManager)km;
if (this.socketOwner != null) {
alias = ekm.chooseServerAlias(certType, null,
this.socketOwner);
} else {
alias = ekm.chooseEngineServerAlias(certType, null,
this.engineOwner);
}
if (alias != null) {
certs = ekm.getCertificateChain(alias);
}